During pregnancy, appendectomy is the most common non-obstetrical surgery. But diagnosis of appendicitis is difficult in term pregnancy due to low sensitivity of ultrasound and nonspecific symptoms that interferes with pregnancy itself. Due to the delay in diagnosis, perforation of appendicitis is high in pregnant patients which is associated with adverse maternal and fetal outcomes. In this report, we present a term pregnant patient who had appendicitis with ruptured phlegmon during labour.